y=(3x^2-x√x+5√x-9)/√x 求导

分类: 作业答案 • 2021-12-28 14:31:58

问题描述：

答

y=(3x^2-x√x+5√x-9)/√x
=3x^(3/2)-x+5-9x^(-1/2)
y'=9/2x^(1/2)-1+9/2x^(-3/2)
=9/2x^(1/2)+9/2x^(-3/2) -1